Package org.apache.druid.query.aggregation.firstlast

Class FirstLastUtils

java.lang.Object

org.apache.druid.query.aggregation.firstlast.FirstLastUtils

public class FirstLastUtils
extends Object

Constructor Summary

Constructors

Constructor	Description
FirstLastUtils()

Method Summary

Modifier and Type	Method	Description
static SerializablePairLongDouble	readDoublePairFromVectorSelectors(boolean[] timeNullityVector, long[] timeVector, Object[] objectVector, int index)
static SerializablePairLongFloat	readFloatPairFromVectorSelectors(boolean[] timeNullityVector, long[] timeVector, Object[] objectVector, int index)
static SerializablePairLongLong	readLongPairFromVectorSelectors(boolean[] timeNullityVector, long[] timeVector, Object[] objectVector, int index)
static boolean	selectorNeedsFoldCheck(BaseObjectColumnValueSelector<?> valueSelector, ColumnCapabilities valueSelectorCapabilities, Class pairClass)	Returns whether a given value selector *might* contain object assignable from pairClass (SerializablePairLong*).

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

FirstLastUtils

public FirstLastUtils()

Method Details

selectorNeedsFoldCheck

public static boolean selectorNeedsFoldCheck(BaseObjectColumnValueSelector<?> valueSelector,
 @Nullable
 ColumnCapabilities valueSelectorCapabilities,
 Class pairClass)

Returns whether a given value selector *might* contain object assignable from pairClass (SerializablePairLong*).

readDoublePairFromVectorSelectors

@Nullable
public static SerializablePairLongDouble readDoublePairFromVectorSelectors(@Nullable
 boolean[] timeNullityVector,
 long[] timeVector,
 Object[] objectVector,
 int index)

readFloatPairFromVectorSelectors

@Nullable
public static SerializablePairLongFloat readFloatPairFromVectorSelectors(@Nullable
 boolean[] timeNullityVector,
 long[] timeVector,
 Object[] objectVector,
 int index)

readLongPairFromVectorSelectors

@Nullable
public static SerializablePairLongLong readLongPairFromVectorSelectors(@Nullable
 boolean[] timeNullityVector,
 long[] timeVector,
 Object[] objectVector,
 int index)